Posted by Grabatire on April 26, 2013 at 21:20:50 from (216.238.225.102):
Changed the head on a 1953 WD9 because the original was cracked. Had the replacement head checked and resurfaced. Now there is water getting in the oil. That didn't appear to be the case with the cracked head still on the engine.
I notice water seeping out above the rear engine mounting plate so I suspect an expansion plug has rusted through on the back of the block. Is there any way that water can get back into the crankcase from that area other than the rear main seal or perhaps past the expansion plug at the rear of the camshaft?
There is no sign of a faulty rear main seal either.
I seen the engine run before the old head was removed, but I hadn't noticed the water coming from the rear. It probably was, I just didn't notice it.
The engine was extremely rusty inside the water jacket. In fact the water baffles were completely destroyed and there was an inch and a half of sediment in the bottom. I hope the block didn't rust through into the crankcase!!
The engine is coming out tomorrow to deal with the leak at the rear. Is there anything I should be looking for other than what I've mentioned above? Dave.
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